Add new Section 4307.1 to read:
§ 4307.1. Miter Saws.
(a)(1) With the carriage in the full cut position as depicted in Figures A and B, a guard shall enclose the upper half of the blade and at least 50 percent of the arbor end.
EXCEPTION: The guard may have an opening for ejection of sawdust provided the opening is located beyond the outer circumference of the blade, or is located in such a manner that a ½ inch diameter probe inserted 2 ½ inches into the opening cannot contact the blade.
(2) The saw power shall be disconnected before cleaning or unjamming the guard opening designed for the ejection of sawdust.
(b) With the carriage in the full retract (raised) position as depicted in Figures A and B, the periphery of the lower blade teeth shall be fully guarded and the guard shall extend at least ¾ of an inch radially inward beyond the root of the teeth.
(c) Employers shall instruct employees to keep hands and fingers outside the area below the blade until the blade has come to a complete stop.